12/11/2025
The Questions You Should Ask Your Bariatric Surgeon Before Surgery
Making the decision to undergo weight loss (bariatric) surgery is a major step toward improving your health, mobility, and quality of life. But before you commit, it’s essential to have confidence in your surgeon and their team. Asking the right questions helps you understand their experience, outcomes, and approach, and ensures you’re in the best possible hands.
1. How much experience do you have with bariatric surgery?
Experience matters. Bariatric surgery is a highly specialised field that requires technical skill and ongoing training. Ask your surgeon:
• How many years have you been performing bariatric surgery?
• What is your main area of expertise: gastric sleeve, gastric bypass, or mini gastric bypass?
• Are you a member of recognised surgical or obesity societies, such as the Australian & New Zealand Metabolic and Obesity Surgery Society?
An experienced surgeon will be transparent about their background and will welcome your questions.
2. How many operations have you performed?
Numbers tell a story. The more procedures a surgeon has successfully completed, the more familiar they are with variations in anatomy and potential complications.
A good benchmark is hundreds, not dozens, of procedures performed. Ask specifically how many of each type of bariatric surgery they’ve done, as techniques differ between gastric sleeve, bypass, and revision surgeries.
3. What are your complication and success rates?
No surgery is without risk, but your surgeon should be able to discuss their complication rates openly and provide context.
Ask about:
• Short-term complications (e.g., bleeding, infection, leaks)
• Long-term complications (e.g., reflux, nutritional issues)
• How their outcomes compare to national or international averages
A reputable surgeon will track their outcomes carefully and participate in clinical audits. This transparency is a strong indicator of professionalism and accountability.
4. What outcomes can I realistically expect?
Results vary from person to person, depending on your starting weight, medical conditions, and lifestyle changes. Ask about the average percentage of excess weight loss their patients achieve and how long it typically takes.
Equally important, discuss non-scale benefits such as improved diabetes control, sleep apnoea relief, and enhanced mobility.
A good bariatric team focuses not only on the surgery itself but also on long-term success supporting you with nutrition, psychology, and follow-up care.
5. What does the aftercare and support programme include?
Aftercare is critical. The months following surgery require close monitoring, dietary guidance, and emotional support. Ask:
• How many follow-up appointments are included?
• Is there access to a dietitian, psychologist, and nurse specialist?
• What happens if I have questions or issues after hours?
Comprehensive aftercare greatly improves outcomes and helps you maintain weight loss safely and sustainably.
Final Thoughts
Choosing your bariatric surgeon is one of the most important decisions you’ll make on your weight loss journey. The best surgeons’ welcome questions they want you to be informed, confident, and ready.
If you’re considering bariatric surgery in Dunedin, Invercargill, Oamaru, Queenstown, or Wanaka, talk to the expert team at Southern Weight Loss. We’re here to guide you every step of the way with compassionate care, proven results, and lifelong support.
👉 Book your consultation today. https://southernweightloss.co.nz/contact/